import java.util.*;

/**
 * Created by IntelliJ IDEA.
 * User: sasha.kon
 * Date: 11.10.2010
 * Time: 10:19:50
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 */
public class class3 {
    int b;

}

class class4 {
    int a;
}

class class5 {
    int a;

}

interface Z {
}